Rule #1 to having a powerful engine that lasts more than 5K miles....NEVER OPEN AND ADJUST THE AIRFLOW METER!!!
Even LCE who popularized (is that a word??) the "Free HP" trick admit that it should only be done with a heavily modified engine to get it to run. I tried it out after heavy engine modifications...4 weeks later I was pulling the motor. Want details?? In short..put it back where it was.
Cam sprocket dot is used for alignment during installation only. When assembled before turning the engine it should be under a bright link in the chain and just left of center....not at 12:00! The cam dowel pin that the timing gear slips over needs to be at 12:00. This is TDC #1 for the camshaft/topend.
Messing with 1 tooth advance/retard is playing with fire but doable.
Delta Cams? Been talking to Johnny?? LOL I'll quit now before I hurt someones feelings.
If the engine is still not running correctly with the 268C then your problem is elsewhere. What all was done to the engine? Rebuild? Head and or block shaved? Ive done just about everything there is do with a 22R-E to break them and to make them.
My best guess is tuning hasnt been "massaged" and that something is off in the geometry of the entire topend assembly- distributor included.
With one of EBs cams, EGR must be buffered or blocked, warm idle speed pushed up over 1K rpm's (but not much more) and valves set per HIS specs. Ignition timing needs to be at factory spec (5* BTDC) and the airflow meter unphuckered with. A couple of hours fine tuning, test driving and more adjusting will be required to get it dialed in.
Keep in mind if you are running a stock exhuast system, the engine will back up and choke worse than a fat chick trying to poop after eating 5 lbs of cheese. If the motor cant fart properly then it dont matter how good it can breath in air. If the exhuast is restricted...it aint leaving the combustion chamber and not letting fresh air/fuel charge in.
Lotsa variables involved! Start with basics...what is new or changed? Was cam just an upgrade or part of a topend or full rebuild?? Whats your engines specs right now IE: timing, warm idle etc.
~Darin <img src="/forums/images/graemlins/baby.gif" alt="" />
